Hi, I run (some of) the test this morning (actually 630 of thoses) and this one sounds quite bad: ERROR: test_generate_fks_ew (tests.unit_tests.fks.test_extra_ew.TestAMCatNLOEW) check that the generate command works as expected. ---------------------------------------------------------------------- Traceback (most recent call last): File "/Users/omattelaer/Documents/workspace/3.0.1/tests/unit_tests/fks/test_extra_ew.py", line 112, in test_generate_fks_ew self.assertEqual(set(split), self.interface._fks_multi_proc['splitting_types']) File "/Users/omattelaer/Documents/workspace/3.0.1/madgraph/core/base_objects.py", line 69, in __getitem__ self.is_valid_prop(name) #raise the correct error File "/Users/omattelaer/Documents/workspace/3.0.1/madgraph/core/base_objects.py", line 86, in is_valid_prop Valid property are %s""" % (name,self.__class__.__name__, self.keys()) PhysicsObjectError: splitting_types is not a valid property for this object: FKSMultiProcess Valid property are ['has_isr', 'use_numerical', 'amplitudes', 'born_processes', 'pdgs', 'ignore_six_quark_processes', 'collect_mirror_procs', 'process_definitions', 'OLP', 'real_amplitudes', 'init_lep_split', 'diagram_filter', 'ncores_for_proc_gen', 'has_fsr', 'loop_filter'] some other crashes like this one: ====================================================================== FAIL: testIO_test_wprod_fksew (tests.unit_tests.iolibs.test_export_fks.IOExportFKSTest) target: SubProcesses/[P0.*\/.+\.(inc|f)] ---------------------------------------------------------------------- Traceback (most recent call last): File "/Users/omattelaer/Documents/workspace/3.0.1/tests/IOTests.py", line 257, in __wrapper testKeys=[(testGroup, newTestName)]) File "/Users/omattelaer/Documents/workspace/3.0.1/tests/IOTests.py", line 700, in runIOTests self.assertFileContains(open(file_path), goal) File "/Users/omattelaer/Documents/workspace/3.0.1/tests/IOTests.py", line 389, in assertFileContains self.assertEqual(a,b) AssertionError: ' CALL FFV1_2(W(1,4),W(1,2),GC_3,DCMPLX(ZERO),W(1,8))' != ' CALL FFV1_2(W(1,4),W(1,2),-GC_4,DCMPLX(ZERO),W(1,8))' Which should be related to model optimization include in 2.6.3. I believe that this is fine (amy does not agree?) Cheers, Olivier On 4 Oct 2018, at 23:24, Olivier Mattelaer <